Before cell reproduction or mitosis can proceed, the correct sequence of steps that must first occur is the following one: growth, chromosome replication, repair of chromosomal errors, and duplication of cell organelles. This is the right order in which these steps should happen before the cell is to reproduce or split itself into several parts during mitosis.
You take the two numbers and you find a number that can be divide into both of those numbers. I am in 7th grade. I can help you if you need it
Chloroplasts are organelles specialized for photosynthesis. Animals do not photosynthesize; therefore, they do not need chloroplasts.
Answer:
Option c. anterior-posterior axis is the right answer.
Explanation:
Bicoid is a maternal effect gene whose protein concentration gradient patterns the anterior-posterior (A-P) axis during Drosophila embryogenesis. it was the first protein demonstrated to act as a morphogen. See image having more explanation.
1.Frost Wedging (Freeze-Thaw)
Water expands by 9 percent when it freezes. As it expands, it exerts up to 4.3 million pounds per square foot of pressure. Since water seeks low points, repeated freezing and thawing can lead to deep vertical fissures as cracks are extended downward. Cracks that allow entry of roots lead to similar wedging.
2.Crystal Formation
Crystal formation cracks rock in a similar way. Most water contains dissolved salts. When water in rock fissures evaporate, the salt concentration increases, which leads to crystallization. This occurs in arid regions where the humidity fluctuates widely, so that the salt can be redissolved and carried into new fissures.
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